Slate
hooks

Dimos, manufacturer
of slate hooks since 2001

Dimos began manufacturing slate hooks in 2001 following the acquisition of Dirickx’s production operations, which date back to 1939. Dimos is now one of the world’s 4 leading players in the manufacture of slate hooks.

All our hooks are manufactured on our production site located in Ancenis, (Pays de la Loire, France) which can produce up to 3,000 tons of hooks each year.

All our slate hooks comply with EN 10088-3, and have been tested and approved by the French technical centres CETIM and LNE. With our CNC machinery, we can produce custom-made hooks on demand, even in small batches.

Choice
of material

When it comes to hooks, their material quality and surface treatment are decisive factors in a roof’s aesthetics and longevity. It is therefore essential to choose the right type of hook depending on your environment:

• Unpolluted rural area: As a minimum, Dimos recommends its 17% stainless steel range, in accordance with French standards DTU 40.11. and DTU 40.13.
• Salt air: some materials cannot withstand the high degree of airborne salinity, which is corrosive.
• Industrial pollution: Around industrial areas, the air is loaded with sulphur dioxide, which attacks stainless steel. Only 18/10 stainless steel can protect the quality of a roof over the long term.

An appropriate material should be chosen depending on the installation conditions:

• Copper (99% copper wire): enhances the roof’s natural beauty, offers good resistance to corrosion, and limits the growth of moss.
• 17% stainless steel (ferritic stainless steel wire, 17% chromium): this is the minimum stainless steel grade specified by DTU 40.11 and DTU 40.13. It offers good mechanical and corrosion resistance, but is not recommended for use near the sea or in an industrial atmosphere.
• 18/10 stainless steel (austenitic stainless steel, 18% chromium, 10% nickel): this alloy offers excellent resistance to atmospheric corrosion as well as good mechanical resistance. It is recommended for use in urban, marine and industrial areas.
• 17% Grinox (17% stainless steel with anthracite colour resin): this material offers the same advantages as 17% stainless steel but is coated with a layer of anthracite coloured resin. This makes for a more discreet hook that is also more resistant to ultraviolet light.
• 18/10 Equinox (18/10 stainless steel with black tinted resin): this material offers the same advantages as 18/10 stainless steel but is coated with a layer of black tinted resin. This makes for a more discreet hook that is also more resistant to ultraviolet light.